What was found
APU AUTO SHUT DOWN WHEN GPU POWER TRANSFER, IAW AMM 49-61-05. REPLACED APCU AND APCU BITE TEST AND SELF TEST OK AND APU OPERATION CHECK NORMAL.
- Difficulty date
- November 6, 2020
- Submitted
- November 10, 2020
- Operation
- Air carrier
- Aircraft
- N643GT
- Make and model
- Boeing 7673JHF
- Aircraft serial
- 37809
- Aircraft time
- 18,860 hours, 5,113 cycles
- System (JASC)
- 4930 · APU Engine Fuel and Control
- Part
- Control Unit
- Part number
- 211734219
- Part serial
- 1081032
- Condition
- Malfunctioned
- Location
- Apu
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.